diff --git a/lib/diaspora_federation/entities/reshare.rb b/lib/diaspora_federation/entities/reshare.rb
index 96ae593..d20cd51 100644
--- a/lib/diaspora_federation/entities/reshare.rb
+++ b/lib/diaspora_federation/entities/reshare.rb
@@ -4,7 +4,22 @@ module DiasporaFederation
     #
     # @see Validators::ReshareValidator
     class Reshare < Entity
-      include Post
+      # @!attribute [r] author
+      #   The diaspora* ID of the person who reshares the post
+      #   @see Person#author
+      #   @return [String] diaspora* ID
+      property :author, :string, xml_name: :diaspora_handle
+
+      # @!attribute [r] guid
+      #   A random string of at least 16 chars
+      #   @see Validation::Rule::Guid
+      #   @return [String] status message guid
+      property :guid, :string
+
+      # @!attribute [r] created_at
+      #   Post entity creation time
+      #   @return [Time] creation time
+      property :created_at, :timestamp, default: -> { Time.now.utc }
 
       # @!attribute [r] root_author
       #   The diaspora* ID of the person who posted the original post
@@ -18,11 +33,6 @@ module DiasporaFederation
       #   @return [String] root guid
       property :root_guid, :string, optional: true
 
-      # @!attribute [r] public
-      #   Has no meaning at the moment
-      #   @return [Boolean] public
-      property :public, :boolean, optional: true, default: true # always true? (we only reshare public posts)
-
       # @return [String] string representation of this object
       def to_s
         "#{super}:#{root_guid}"
@@ -30,6 +40,11 @@ module DiasporaFederation
 
       # Fetch and receive root post from remote, if not available locally
       # and validates if it's from the correct author
+      # TODO: after reshares are only used to increase the reach of a post (and
+      # legacy reshares with own interactions are migrated to the new form),
+      # root_author and root_guid aren't allowed to be empty anymore, so a
+      # not_nil check should be added to the validator and the first few lines
+      # here can be removed.
       def validate_root
         return if root_author.nil? && root_guid.nil?
 
diff --git a/lib/diaspora_federation/schemas/federation_entities.json b/lib/diaspora_federation/schemas/federation_entities.json
index b9a8012..b30af83 100644
--- a/lib/diaspora_federation/schemas/federation_entities.json
+++ b/lib/diaspora_federation/schemas/federation_entities.json
@@ -215,28 +215,26 @@
     },
 
     "reshare": {
-      "allOf": [
-        {"$ref": "#/definitions/post"},
-        {
+      "type": "object",
+      "properties": {
+        "entity_type": {
+          "type": "string",
+          "pattern": "^reshare$"
+        },
+
+        "entity_data": {
           "type": "object",
           "properties": {
-            "entity_type": {
-              "type": "string",
-              "pattern": "^reshare$"
-            },
-
-            "entity_data": {
-              "type": "object",
-              "properties": {
-                "root_author": {"type": "string"},
-                "root_guid": {"$ref": "#/definitions/guid"}
-              },
-
-              "required": ["root_author", "root_guid"]
-            }
-          }
-        }
-      ]
+            "author": { "type": "string" },
+            "guid": { "$ref": "#/definitions/guid" },
+            "created_at": { "type": "string" },
+            "root_author": {"type": "string"},
+            "root_guid": {"$ref": "#/definitions/guid"}
+          },
+          "required": ["author", "guid", "created_at", "root_author", "root_guid"]
+        },
+        "required": ["entity_type", "entity_data"]
+      }
     },
 
     "profile": {
diff --git a/lib/diaspora_federation/test/factories.rb b/lib/diaspora_federation/test/factories.rb
index dce4e6e..9c4d83f 100644
--- a/lib/diaspora_federation/test/factories.rb
+++ b/lib/diaspora_federation/test/factories.rb
@@ -150,9 +150,7 @@ module DiasporaFederation
         root_guid { Fabricate.sequence(:guid) }
         guid { Fabricate.sequence(:guid) }
         author { Fabricate.sequence(:diaspora_id) }
-        public true
         created_at { Time.now.utc }
-        provider_display_name { "the testsuite" }
       end
 
       Fabricator(:retraction_entity, class_name: DiasporaFederation::Entities::Retraction) do
diff --git a/lib/diaspora_federation/validators/reshare_validator.rb b/lib/diaspora_federation/validators/reshare_validator.rb
index db8858d..ab5a0d8 100644
--- a/lib/diaspora_federation/validators/reshare_validator.rb
+++ b/lib/diaspora_federation/validators/reshare_validator.rb
@@ -11,8 +11,6 @@ module DiasporaFederation
       rule :author, %i[not_empty diaspora_id]
 
       rule :guid, :guid
-
-      rule :public, :boolean
     end
   end
 end
diff --git a/spec/lib/diaspora_federation/entities/reshare_spec.rb b/spec/lib/diaspora_federation/entities/reshare_spec.rb
index 2ba066b..7a15a85 100644
--- a/spec/lib/diaspora_federation/entities/reshare_spec.rb
+++ b/spec/lib/diaspora_federation/entities/reshare_spec.rb
@@ -8,10 +8,8 @@ module DiasporaFederation
   <author>#{data[:author]}</author>
   <guid>#{data[:guid]}</guid>
   <created_at>#{data[:created_at].utc.iso8601}</created_at>
-  <provider_display_name>#{data[:provider_display_name]}</provider_display_name>
   <root_author>#{data[:root_author]}</root_author>
   <root_guid>#{data[:root_guid]}</root_guid>
-  <public>#{data[:public]}</public>
 </reshare>
 XML
 
@@ -22,10 +20,8 @@ XML
     "author": "#{data[:author]}",
     "guid": "#{data[:guid]}",
     "created_at": "#{data[:created_at].utc.iso8601}",
-    "provider_display_name": "#{data[:provider_display_name]}",
     "root_author": "#{data[:root_author]}",
-    "root_guid": "#{data[:root_guid]}",
-    "public": #{data[:public]}
+    "root_guid": "#{data[:root_guid]}"
   }
 }
 JSON
@@ -38,24 +34,6 @@ JSON
 
     it_behaves_like "a JSON Entity"
 
-    context "default values" do
-      it "uses default values" do
-        minimal_xml = <<-XML
-<reshare>
-  <author>#{data[:author]}</author>
-  <guid>#{data[:guid]}</guid>
-  <created_at>#{data[:created_at]}</created_at>
-  <root_diaspora_id>#{data[:root_author]}</root_diaspora_id>
-  <root_guid>#{data[:root_guid]}</root_guid>
-</reshare>
-XML
-
-        parsed_instance = DiasporaFederation::Salmon::XmlPayload.unpack(Nokogiri::XML(minimal_xml).root)
-        expect(parsed_instance.public).to be_truthy
-        expect(parsed_instance.provider_display_name).to be_nil
-      end
-    end
-
     context "parse xml" do
       describe "#validate_root" do
         it "fetches the root post if it is not available already" do
diff --git a/spec/lib/diaspora_federation/validators/reshare_validator_spec.rb b/spec/lib/diaspora_federation/validators/reshare_validator_spec.rb
index e78905d..d163472 100644
--- a/spec/lib/diaspora_federation/validators/reshare_validator_spec.rb
+++ b/spec/lib/diaspora_federation/validators/reshare_validator_spec.rb
@@ -28,9 +28,5 @@ module DiasporaFederation
         let(:mandatory) { false }
       end
     end
-
-    it_behaves_like "a boolean validator" do
-      let(:property) { :public }
-    end
   end
 end